Towards the Creation of a Threat Intelligence Framework for Maritime Infrastructures. - Nikolaos Pitropakis; Marios Logothetis; Gennady L. Andrienko; Jason Stefanatos; Eirini Karapistoli; Costas Lambrinoudakis (CyberICPS/SECPRE/SPOSE/ADIoT@ESORICS, 2019)